GB438202A - Improvements in door-operated electric switches - Google Patents

Improvements in door-operated electric switches

Info

Publication number
GB438202A
GB438202A GB1447234A GB1447234A GB438202A GB 438202 A GB438202 A GB 438202A GB 1447234 A GB1447234 A GB 1447234A GB 1447234 A GB1447234 A GB 1447234A GB 438202 A GB438202 A GB 438202A
Authority
GB
United Kingdom
Prior art keywords
door
plunger
spring
switch
head
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1447234A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1447234A priority Critical patent/GB438202A/en
Publication of GB438202A publication Critical patent/GB438202A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H13/183—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift for actuation by moving a closing member, e.g. door, cover
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/14—Tumblers
    • H01H23/146—Tumblers having a generally tubular or conical elongated shape, e.g. dolly

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

438,202. Retractive switches. BAER, B. W., 11, Hazelwood Road, New Farm, Brisbane, Australia. May 14, 1934, No. 14472. [Class 38 (v)] A retractive tumbler switch is adapted to be held in the on position when a door is closed, and released to move to the off position when the door is opened. The tumbler switch has an operating lever 13 which operates a movable contact 14 through snap action mechanism. Slidable in an extension of the casing is a plunger 25 biassed to the right by a spring 26. A rod 27 having a head 28 is slidable in the plunger 25 and biassed away from it by a spring 29. The rod 27 is connected to the plunger 25 by a pin 27<a> passing through a slot in the rod 27. As shown the plunger 25 is pushed in by closure of a door (not shown), and the head 28 lies in the path of an extension 23 of lever 13. The switch can however be moved to the closed position the head 28 sliding against spring 29, but the switch is held closed against the action of return spring 21. On opening the door the plunger 25 moves to the right due to spring 26, and pin 27<a> withdraws the head 28 out of the path of the lug 23 and the switch opens.
GB1447234A 1934-05-14 1934-05-14 Improvements in door-operated electric switches Expired GB438202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1447234A GB438202A (en) 1934-05-14 1934-05-14 Improvements in door-operated electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1447234A GB438202A (en) 1934-05-14 1934-05-14 Improvements in door-operated electric switches

Publications (1)

Publication Number Publication Date
GB438202A true GB438202A (en) 1935-11-13

Family

ID=10041796

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1447234A Expired GB438202A (en) 1934-05-14 1934-05-14 Improvements in door-operated electric switches

Country Status (1)

Country Link
GB (1) GB438202A (en)

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